Maurice m



(Nb Model.) M. M. SMITH.

BRIGK FOR VENTILATION.

Patented Aug. 17, 1886.

UNITED STATES PATENT OFFICE.

MAURICE M. SMITH, OF WASHINGTON, DISTRICT OF COLUMBIA.

BRICK FOR VENTILATION.

LPECIPICATION forming part of Letters Patent No. 347,392, dated August1.7, 1886.

Application filed October 3, 1885.

To all whom it may concern.-

Be it known that I, MAURIOE M. SMITH, residing at Vashington, in theDistrict of Columbia, haveinvented certain new and useful Improvementsin Bricks for Ventilation, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to bricks for ventilation; and the improvementconsistsin a brick building-block having apertures for ventilation, andin the means whereby the same is secured in a brick wall.

The object of the invention is to produce a brick ventilator which maybe inserted in a brick wall near the base or the corniceof a building,or under windows, '&c.., as a substitute for the usual cast-ironventilator.

In the drawings, Figure l is a perspective view of my ventilator-brickwith fasteningstrap. Figs. 2 and 3are vertical longitudinal sections ofsuch a brick. Fig. 4 is a section on line 00 m. Fig. 5 is a brickventilator in position in a wall.

A indicates a brick of any desired size, but preferably of such size asto be a multiple in its face area of a number of ordinary bricks plusthe thickness of the layers of mortar be tween the courses of bricks.The body'of the brick is perforated with any desired number of holes, B,which-should be so small as not to" reach entirely throughthe brick, asin Fig. 2, or may extend a little wayinto the ends, as in Fig. 3. Thestrips 0 may be burned in the Serial No. 178,915. (No model.)

brick; but it is better to make a small recess 0, in each end of thebrick before burning, and spring in the bent piece 0 at the time oflaying the brick. The binding-strap Cis in such position as to lie inthe mortar forming the joint between bricks in the wall, as in Fig. 5,and the ventilator-brick is thus held firmly in place substantially anddurably.

I am aware that bricks have been described which have a longitudinalgroove in which a strip of wood was placed, said strip lying in thegroove in a number of bricks to bind them together, and that such brickshad grooves or depressions in their sides to' receive plaster. Myventilated brick differs from such in the fact that the binding-strip,which is metallic, projects axially from the ends of the brick; also, inthe fact that the perforations extend entirely through the brick.

I claim l. A brick or building-block having ventilating-perforationsextending entirely through it, and having fiat binding-strips extendingfrom the central portion of each end, as set forth. r

2. The combination, with the bricks constituting a wall, of aventilating-brick of twice the thickness of the ordinary bricks in thewall, said ventilating brick having perforations extending entirelythrough it from face to back, and havingflat metallic binding-stripscentrally secured, so as to project at each end and enter the mortarbetween the adjoining bricks, substantially as described.

3. The combination, with the brick A, having recess a, of the flat strip0, having a looped end lying in the recess in the brick.

In testimony whereof I aflix my signature in presence of two witnesses.

I MAURICE M. SMITH.

Witnesses:

W. -A. BARTLETT, W. H. PENNINGTON.

